I.S. EN 12050-4:2015现行
Wastewater Lifting Plants for Buildings and Sites Part 4: Non-return Valves for Faecal-free Wastewater and Wastewater Containing Faecal Matter
出版：National Standards Authority of Ireland
专家解读视频
Pertains to non-return valves used for faecal-free wastewater and wastewater containing faecal matter lifting plants.
NEN EN 12050-4:2015 - Identical
NS EN 12050-4:2015 - Identical
SS EN 12050-4 Ed. 2 (2015) - Identical
UNE EN 12050-4:2015 - Identical
NF EN 12050-4:2015 - Identical
NBN EN 12050-4:2015 - Identical
ONORM EN 12050-4:2015 - Identical
